In this case, the X-Treme 110-grain plated bullet intended for the .30 Carbine, and the Lyman 115-grain cast bullet for the same
The cast bullets had gas checks, could have tried with 10.0 as well. Though at this range(30 yards) don't see why. Actually, next time I can cast I'm going to make more of these and try them without gas checks. There's a wonderful article over at Cast Boolits on the subject that includes this:
The "100 Yard Target and Small Game" Load
I use Mattern's plain-based "100 yard target load" to use up my minor
visual defect culls for offhand and rapid-fire 100 yard practice. I
substitute my usual gas-checked bullets, but without the gas-check. I
started doing this in 1963 with the Lyman #311291. Today I use the Lee
.312-155-2R, or the similar tumble-lubed design TL.312-160-2R. Most of
my rifle shooting is done with these two basic designs.
Bullets I intend for plain based loads are blunted using a flat-nosed
top punch in my lubricator, providing a 1/8" flat which makes them more
effective on small game and clearly distinguishes them from my heavier
gas-checked loads. This makes more sense to me than casting different
Bullet preparation is easy. I visually inspect each run of bullets and
throw those with gross defects into the scrap box for remelting. Bullets
with minor visual defects are tumble-lubed in Lee Liquid Alox without
sizing, and are used for plain base plinkers. ...For gas-check bullets loaded
without the gas- checks, for cases like the .303 British, 7.62 NATO,
7.62x54R Russian and 30-06, I use 6-7 grains of almost any fast burning
powder. These include, but are not limited to Bullseye, WW231, SR-7625,
Green Dot, Red Dot or 700-X. I have also had fine results with 8 to 9
grains of medium rate burning pistol or shotgun powders, such as Unique,
PB, Herco, or SR-4756 in any case of .303 British or larger.
In the 7.62x39 case, use no more than 4 grains of the fast burning
powders mentioned or 5 grains of the shotgun powders. Theses make
accurate 50 yard small game loads which let you operate the action
manually and save your precious cases. These plinkers are more accurate
than you can hold.
I'd imagine .30-30 would fit in the 7.62x39 size. That would mean 4 or 5 grains of powder with that 115-grain bullet, or the 100-grain SWC tried earlier. That requires a try.